Steel-concrete composite beam cable-stayed bridge guy cable hanging basket thrust device and construction method

Abstract

The invention discloses a steel-concrete composite beam cable-stayed bridge guy cable hanging basket thrust device and a construction method, and relates to the technical field of bridge construction, the steel-concrete composite beam cable-stayed bridge guy cable hanging basket thrust device comprises a bridge body, a thrust block arranged on the bridge body, a thrust pin shaft penetrating through the thrust block and fixed with the thrust block, and an embedded part arranged on the bridge body; according to the steel-concrete composite beam cable-stayed bridge guy cable hanging basket thrust device and the construction method, through effective cooperation of the thrust block, the thrust screw rod and the finish rolling deformed steel bar mechanism, horizontal component force generated by a stay cable can be stably resisted, displacement of the hanging basket in the construction process is avoided, and therefore the safety and stability of the construction process are improved.

Description

Technical Field

[0001] The invention relates to the technical field of bridge construction, and in particular to a cable-stayed bridge guy-cable hanging basket thrust stop device and a construction method thereof. Background Art

[0002] In the construction of cantilever cast-in-place prestressed concrete cable-stayed bridges, the cable-stayed basket is a key construction equipment and is widely used in the segmented construction of the main beam. The equipment uses the cable of the beam section to be cast as the front fulcrum of the basket to provide support force, and anchors the rear end of the basket to the cast beam section. The cable and the cast beam section jointly bear the concrete gravity of the segment to be cast. This method transforms the cantilever beam force in the traditional basket into a simply supported beam force, greatly improving the length and load-bearing capacity of the segment suspension casting and speeding up the construction progress. However, during the construction process, the cable force of the cable needs to be continuously adjusted to support the wet weight of the cast concrete and the construction load. At this time, the cable will generate a horizontal component force, which will cause stability problems for the basket and may cause the basket to move backward.

[0003] In order to prevent the basket from moving, an effective thrust-stop structure must be set between the basket and the concrete beam to resist the horizontal force of the cable. At present, the common thrust-stop structure is to cast concrete shear blocks or embedded steel shear blocks on the outside of the concrete beam bottom plate. These shear blocks are in contact with the shear blocks on the basket and work together to resist the horizontal force of the cable. However, this thrust-stop structure has certain limitations: first, due to the large horizontal force generated by the cable, the shear blocks or embedded steel shear blocks at the bottom of the concrete beam are large in size, which may affect the clearance under the bridge; second, in urban landscape bridges, these large shear blocks may affect the aesthetics of the bridge. Summary of the invention

[0004] The object of the present invention is to provide a thrust stop device for a cable-stayed bridge with steel-concrete composite beams and a construction method, so as to solve the deficiencies in the prior art.

[0005] To achieve the above object, the present invention provides the following technical solution: a thrust stop device for a guy-cable hanging basket of a steel-concrete composite beam cable-stayed bridge, comprising:

[0006] Bridge body;

[0007] A thrust block, arranged on the bridge body;

[0008] A thrust pin shaft, which passes through the thrust block and is fixed to the thrust block;

[0009] Embedded parts are arranged on the bridge body.

[0010] Preferably, the thrust pin shaft is fixed to the thrust block by welding.

[0011] Preferably, the embedded parts are buried at the bottom of the bridge body, and the embedded parts include seamless steel pipes and steel meshes.

[0012] Preferably, it also includes a thrust screw, which includes a steel rod, a threaded screw, a nut and an end pressure-bearing steel plate, and a hole is opened on the nut.

[0013] Preferably, it also includes a thrust base, on which a precision-rolled threaded steel mechanism is fixed, and the thrust base is anchored to the bridge body through the precision-rolled threaded mechanism.

[0014] Preferably, the finish-rolled threaded steel mechanism includes a first finish-rolled threaded steel and a second finish-rolled threaded steel.

[0015] Preferably, the thrust block is anchored to the bridge body through a first precision-rolled threaded steel bar.

[0016] Preferably, the thrust base is anchored to the bridge body by a second fine-rolled threaded steel bar.

[0017] Preferably, the thrust block is fixed with a thrust block thrust anchor beam via a first precision-rolled threaded steel bar.

[0018] A construction method for a cable-stayed bridge guy-cable hanging basket thrust stop device for a steel-concrete composite beam cable-stayed bridge, using the cable-stayed basket thrust stop device for a steel-concrete composite beam cable-stayed bridge, the method comprising:

[0019] S1. Set thrust blocks on the bridge body and ensure their accurate position;

[0020] S2, connecting the thrust block to the bridge body through the thrust pin shaft, and fixing the thrust pin shaft and the thrust block by welding;

[0021] S3. Embedded parts are embedded at the bottom of the bridge body. The embedded parts are composed of seamless steel pipes and steel mesh and are fixed to the bottom form by electric welding to prevent them from moving during the pouring process;

[0022] S4. Set a thrust screw and insert the steel bar through its nut and rotate it to fix it, so as to adjust the bearing state of the screw to ensure that it can provide appropriate supporting force;

[0023] S5. Install the thrust base and anchor the thrust base to the bridge body through the precision-rolled threaded steel structure to ensure that the thrust base can effectively withstand the required thrust force;

[0024] S6. Anchor the thrust block and thrust base through the precision-rolled threaded steel structure.

[0025] It can be seen from the above technical solution that the present invention has the following beneficial effects:

[0026] The thrust device and construction method of the cable-stayed bridge of the steel-concrete composite beam can stably resist the horizontal force component generated by the cable-stayed cable through the effective cooperation of the thrust block, the thrust screw and the precision-rolled threaded steel mechanism, and avoid the displacement of the basket during the construction process, thereby improving the safety and stability of the construction process. Different from the traditional concrete shear block or the embedded steel shear block, the thrust device of the present invention adopts a relatively compact structural design, which reduces the occupied space and the impact on the clearance under the bridge, and is particularly suitable for projects with high requirements for beauty such as urban landscape bridges. The setting of the thrust screw enables the entire thrust device to be adjusted according to construction needs, which is convenient for adjusting the cable force according to the change of load at different construction stages, and optimizing the mechanical distribution during the construction process, thereby improving the flexibility of construction. Since the device has a simple structure and is easy to install, it can significantly reduce the dependence on the traditional large-scale thrust structure during the construction process, saving a lot of labor and material costs. At the same time, the reliability and effectiveness of the thrust device also speed up the construction progress and shorten the construction period. The device of the present invention has a simple structure and strong component interchangeability, and can adapt to the construction of cable-stayed bridges of different sizes and types, and has strong adaptability and broad application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a side view of the thrust stop device of the guy rope hanging basket of the present invention;

[0028] Figure 2 This is a front view of the thrust stop device of the guy rope hanging basket of the present invention;

[0029] Figure 3 This is a schematic diagram of the thrust base structure of the guy rope hanging basket of the present invention;

[0030] Figure 4 This is a schematic diagram of the thrust block structure of the guy rope hanging basket of the present invention;

[0031] Figure 5 This is a schematic diagram of the thrust screw structure of the guy wire hanging basket of the present invention;

[0032] Figure 6 This is a schematic diagram of the thrust-stop embedded part structure of the guy rope hanging basket of the present invention;

[0033] Figure 7 The figure is a flow chart of the method of the present invention.

[0034] In the figure: 1. thrust block; 2. thrust pitch shaft; 3. embedded parts; 4. thrust screw; 5. thrust base; 6. first fine-rolled threaded steel bar; 7. thrust block thrust anchor beam; 8. second fine-rolled threaded steel bar; 9. bridge body; 10. fine-rolled thread mechanism. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] like Figure 1-Figure 6 As shown, a thrust device for a cable-stayed bridge of a steel-concrete composite beam, specifically comprises: a bridge body 9; a thrust block 1 arranged on the bridge body 9; a thrust pin shaft 2 penetrating the thrust block 1 and fixed thereto; and an embedded part 3 arranged on the bridge body 9. The device realizes stable support of the cable-stayed basket during the construction process through reasonable structural design, and effectively prevents the cable-stayed basket from shifting or detaching, thereby improving the safety and accuracy of bridge construction. During the construction process, the cable-stayed basket is fixedly connected to the bridge body 9 through the thrust block 1 and the thrust pin shaft 2. The thrust block 1 is installed on the bridge body 9, and the thrust pin shaft 2 penetrates the thrust block 1 and is fixed to the thrust block 1 by means of thread, welding, etc. The embedded part 3 is arranged in the bridge body 9 to ensure that the thrust block 1 and the pin shaft 2 can be firmly fixed on the bridge structure. When the cable-stayed basket is subjected to external force, the thrust block 1 and the pin shaft 2 work together to prevent the basket from shifting or becoming unstable through the supporting force of the pin shaft, thereby ensuring the stability of the basket and the safety of the construction process. The thrust device for the cable basket of a steel-concrete composite beam cable-stayed bridge provided by the present invention has many beneficial effects. First, through the close cooperation between the thrust block 1 and the thrust pin shaft 2, the cable basket can be effectively supported and stabilized to avoid unnecessary displacement or deformation during the construction process. Secondly, the embedded parts 3 can be fixed to the bridge body 9 at the beginning of construction to ensure the overall stability of the device. The device has a simple and reliable structure, is easy to install and maintain, can significantly improve the accuracy and safety of the bridge construction process, reduce construction risks and time costs, and has broad application prospects.

[0037] In addition to the above-mentioned embodiments, the present invention can also be adjusted according to specific engineering requirements. For example, the material of the thrust block 1 and the thrust pin shaft 2 can select different high-strength materials, such as high-strength steel or alloy materials, according to different bridge structures and construction environments to enhance their durability and compressive resistance. At the same time, the shape and size of the embedded parts 3 can also be customized according to actual conditions so as to better cooperate with different types of bridge bodies 9. Through these adjustments, the use effect of the device can be further optimized so that it can achieve ideal results in different types of steel-concrete composite beam cable-stayed bridge projects.

[0038] The thrust pin shaft 2 is fixed to the thrust block 1 by welding. This welding connection method effectively enhances the stability between the thrust block 1 and the pin shaft 2, ensures that the two are tightly connected during the entire construction process, and avoids possible loosening or displacement problems. In this embodiment, the thrust pin shaft 2 is firmly connected to the thrust block 1 by welding. The welding technology melts the metal at high temperature and fuses the two parts of the material, so that the thrust pin shaft 2 and the thrust block 1 form a solid integral connection. This connection method not only improves the firmness of the connection, but also reduces the error and looseness caused by mechanical assembly. Through this welding connection, the thrust block 1 and the pin shaft 2 can provide a more stable support force, thereby ensuring that the guy rope hanging basket can be safely and stably supported during the construction process. Compared with traditional bolts or other mechanical fixing methods, welding fixation has higher strength and reliability. The welding connection eliminates the risk of bolt loosening or wear, and improves the tensile strength and service life of the device. In addition, the welding connection also reduces the number of parts of the device, simplifies the manufacturing and installation process, and improves the overall construction efficiency. This implementation method can effectively improve the safety of the device and reduce the workload of maintenance and inspection.

[0039] The welding method of the present invention can select different welding processes according to specific circumstances. For example, gas shielded welding, submerged arc welding and other technologies are used to ensure that the welded joint has sufficient strength and stability. At the same time, heat treatment can be performed during the welding process to improve the durability and fatigue resistance of the welded part. For some special working conditions, other strengthening measures may also need to be considered, such as adding reinforcement plates or using high-performance welding materials to further enhance the strength and stability of the welding area.

[0040] The embedded part 3 is embedded at the bottom of the bridge body 9, and the embedded part 3 includes a seamless steel pipe and a steel mesh. In this embodiment, the embedded part 3 is embedded at the bottom of the bridge body 9 to ensure that it can be closely combined with the bridge body 9 at the beginning of construction. The embedded part 3 is composed of a seamless steel pipe and a steel mesh, and this combined structure ensures the fixity and strength of the embedded part 3 in the bridge body. The seamless steel pipe provides a high-strength supporting force, while the steel mesh enhances the overall bonding strength of the embedded part 3 and the bridge body 9, and improves its bearing capacity. Through this arrangement, the embedded part 3 can effectively stably connect the thrust block 1 and the pin 2 to the bridge body 9, and enhance the bearing capacity and stability of the overall device. The present invention adopts a combined structure of a seamless steel pipe and a steel mesh in the design of the embedded part 3, which can significantly improve the bonding strength of the embedded part 3 and the bridge body 9. The seamless steel pipe provides higher tensile and compressive properties, and the steel mesh further enhances the ability of the embedded part 3 to withstand external forces during construction, avoiding loosening or falling off due to external forces. This design effectively improves the stability of the guy rope hanging basket thrust device and reduces the potential safety hazards that may occur during the construction process. In addition, the embedded part 3 has a simple structure and low manufacturing cost, which is convenient for construction and maintenance, further reducing the construction cost and construction period of the project.

[0041] In addition to the above-mentioned embodiments, the embedded parts 3 in the present invention can be adjusted according to actual needs. The diameter and wall thickness of the seamless steel pipe can be optimized according to the size and load requirements of the bridge body 9 to ensure the best load-bearing effect. The specifications and density of the steel mesh can also be selected according to the construction environment and mechanical requirements of the location of the embedded parts 3 to achieve stronger tensile and shear resistance. In addition, in certain cases, the material of the embedded parts 3 can also be selected as anti-corrosion materials or high-temperature resistant alloy materials according to environmental requirements to further improve the adaptability and durability of the device under special conditions.

[0042] It also includes a thrust screw 4, which includes a steel rod, a threaded screw, a nut and an end pressure-bearing steel plate, and a hole is opened on the nut. In this embodiment, the thrust screw 4 is designed to further improve the stability of the cable hanging basket to ensure that no displacement or loosening occurs during the construction process. The thrust screw 4 includes a steel rod, a threaded screw, a nut and an end pressure-bearing steel plate. The nut is provided with a hole to facilitate connection and fixing by other components or tools. The thrust screw 4 is fastened to the thrust block 1 or the bridge body 9 through its threaded portion to ensure the tight combination of the thrust screw and other structural components. By applying pressure, the bearing capacity of the screw and the end pressure-bearing steel plate work together to provide additional support and stability for the cable hanging basket, and prevent displacement or uneven displacement under the action of external loads. The present invention further enhances the stability and bearing capacity of the thrust device by introducing the thrust screw 4. The thrust screw 4 has a reasonable structural design, and its threaded portion can be adjusted with high precision, so that the thrust device can flexibly adapt to different construction environments and requirements. The holes opened on the nut allow the thrust screw 4 to be more conveniently connected to other mounting components or supporting devices, thereby enhancing the operability of the entire device. In addition, the combined design of the pressure-bearing steel plate and the steel rod can withstand large external forces, ensuring that the guy wire basket remains stable during the construction process, avoiding displacement or damage caused by excessive pressure. The device has a simple structure, is easy to manufacture and install, reduces the complexity of the construction process, and significantly improves construction safety.

[0043] In addition to the above-mentioned embodiments, the various components of the thrust screw 4 in the present invention, such as the steel rod, screw rod, nut, etc., can be selected from different materials and specifications according to different engineering requirements. For example, the steel rod part can be made of high-strength alloy steel to enhance its tensile strength; the screw rod and nut parts can be treated with anti-corrosion to adapt to different environmental conditions, especially in wet or highly corrosive areas. In addition, the size and shape of the end pressure-bearing steel plate can also be optimized according to actual needs to ensure that it can provide uniform pressure distribution during the load-bearing process to avoid concentrated stress causing material damage.

[0044] It also includes a thrust base 5, on which a fine-rolled threaded steel mechanism 10 is fixed, and the thrust base 5 is anchored on the bridge body 9 through the fine-rolled threaded mechanism 10. In this embodiment, the combination of the thrust base 5 and the fine-rolled threaded steel mechanism 10 enables the thrust device to be more firmly fixed on the bridge body 9. The thrust base 5 is fixed with a fine-rolled threaded steel mechanism 10, and the fine-rolled threaded steel mechanism 10 is precisely anchored to the embedded part on the bridge body 9 through its unique threaded structure. The thrust base 5 is tightly combined with the bridge body 9 through the fine-rolled threaded steel mechanism 10, which not only enhances the stability of the device, but also effectively avoids loosening or displacement under external loads. This structure ensures that the cable hanging basket is always in a stable state during the construction process, providing strong support for bridge construction. The combination design of the thrust base 5 and the fine-rolled threaded steel mechanism 10 in the present invention provides an efficient and stable connection method. The fine-rolled threaded steel is tightly combined with the bridge body 9 through its high-strength threaded structure, ensuring that the thrust base 5 will not become loose or unstable during long-term use. At the same time, the anchoring effect of the fine-rolled threaded steel greatly improves the stability of the entire device, especially in harsh environments such as strong winds and heavy rains, and can also maintain good working performance. In addition, the installation and adjustment process of the fine-rolled threaded steel mechanism 10 is relatively simple, with high operational convenience and construction efficiency, reducing the difficulty and cost of construction.

[0045] In addition to the above-mentioned embodiments, the materials of the thrust base 5 and the finely rolled threaded steel mechanism 10 in the present invention can be optimized according to actual needs. For example, the thrust base 5 can be made of high-strength steel or alloy steel to further enhance its bearing capacity; the finely rolled threaded steel part can be treated with anti-corrosion according to the requirements of the construction environment to extend the service life of the device. In addition, the specifications and dimensions of the finely rolled threaded steel mechanism 10 can also be adjusted according to the actual dimensions of the bridge body 9 to ensure the best anchoring effect. In special cases, the stability of the thrust base 5 can also be further enhanced by adding additional fixing devices.

[0046] The fine-rolled threaded steel mechanism 10 includes a first fine-rolled threaded steel 6 and a second fine-rolled threaded steel 8. In the present embodiment, the fine-rolled threaded steel mechanism 10 includes a first fine-rolled threaded steel 6 and a second fine-rolled threaded steel 8, and the two threaded steel parts provide a stronger anchoring ability by cooperating with each other. The first fine-rolled threaded steel 6 and the second fine-rolled threaded steel 8 are connected to the thrust base 5 and the bridge body 9 respectively, and are tightly combined through their threaded structures. During construction, the first fine-rolled threaded steel 6 is tightly connected to the fixed part of the thrust base 5 through threads, while the second fine-rolled threaded steel 8 is anchored to the embedded parts of the bridge body 9 through threads. This design ensures that the thrust base 5 is firmly combined with the bridge body 9 through the mutual cooperation of the threaded steels, thereby enhancing the overall bearing capacity and compressive resistance of the device and ensuring the stable support of the cable hanging basket. The fine-rolled threaded steel mechanism 10 in the present invention is composed of the first fine-rolled threaded steel 6 and the second fine-rolled threaded steel 8, which further enhances the anchoring effect between the thrust base 5 and the bridge body 9. The threaded steel has excellent tensile strength and good adaptability. Through thread matching, it can maintain a firm connection under the action of external force, avoiding the possibility of loosening or instability of the thrust base 5. The combination of the first fine-rolled threaded steel 6 and the second fine-rolled threaded steel 8 makes the anchoring capacity of the device more stable, can effectively share the load, and improve the safety of the overall system. In addition, the selection of the fine-rolled threaded steel material provides higher corrosion resistance and durability, thereby extending the service life of the device.

[0047] The thrust block 1 is anchored on the bridge body 9 through the first fine-rolled threaded steel 6. In this embodiment, the thrust block 1 is anchored on the bridge body 9 through the first fine-rolled threaded steel 6. The thread structure of the first fine-rolled threaded steel 6 is closely matched with the embedded part in the bridge body 9, so that the thrust block 1 can be stably fixed on the bridge body 9. When the guy rope hanging basket is subjected to external force, the thrust block 1 transmits the external force to the bridge body 9 through the anchoring effect of the first fine-rolled threaded steel 6, effectively avoiding the displacement or loosening of the hanging basket. In addition, the high strength and excellent adaptability of the first fine-rolled threaded steel 6 make the connection between the thrust block 1 and the bridge body 9 more firm, and enhance the stability of the entire device. The present invention significantly improves the overall stability and safety of the device by anchoring the thrust block 1 on the bridge body 9 through the first fine-rolled threaded steel 6. The first fine-rolled threaded steel 6 can provide strong tensile strength and good durability, ensuring the close combination of the thrust block 1 and the bridge body 9, thereby effectively avoiding loosening or instability caused by external forces during construction. In addition, the design is easy to adjust and install, reduces the complexity of construction, and improves installation efficiency. The use of the first fine-rolled threaded steel 6 as an anchor also improves the adaptability of the device in harsh environments, has high corrosion resistance, and prolongs its service life. The thrust base 5 is anchored to the bridge body 9 through the second fine-rolled threaded steel 8. In this embodiment, the thrust base 5 is anchored to the bridge body 9 through the second fine-rolled threaded steel 8. The threaded structure of the second fine-rolled threaded steel 8 is closely matched with the embedded components in the bridge body 9, so that the thrust base 5 can be firmly fixed to the bridge body 9. This design ensures the stability of the thrust base 5 during the construction process and can effectively resist the displacement caused by external loads or vibrations during construction. Through the anchoring effect of the second fine-rolled threaded steel 8, the connection between the thrust base 5 and the bridge body 9 becomes stronger, thereby improving the stability and compressive resistance of the entire device. The present invention enhances the overall bearing capacity and tensile strength of the thrust device by anchoring the thrust base 5 to the bridge body 9 through the second fine-rolled threaded steel 8. The second fine-rolled threaded steel bar 8 transmits external force to the bridge body 9 through threaded matching, thereby effectively preventing the thrust base 5 from loosening or becoming unstable during the construction process. In addition, the use of the second fine-rolled threaded steel bar 8 provides higher anchoring accuracy, making the connection between the thrust base 5 and the bridge body 9 more secure. This design not only improves the reliability of the device, but also reduces the potential safety hazards that may occur during construction, and further ensures the stability during the construction process.

[0048] The thrust block 1 is fixed with a thrust block thrust anchor beam 7 through the first fine-rolled threaded steel bar 6. In the present embodiment, the thrust block 1 is fixed with a thrust block thrust anchor beam 7 through the first fine-rolled threaded steel bar 6. The first fine-rolled threaded steel bar 6 is tightly combined with the thrust block 1 through its threaded structure, and connects the thrust block 1 with the thrust block thrust anchor beam 7. As an auxiliary supporting structure, the thrust block thrust anchor beam 7 can further strengthen the fixation of the thrust block 1 to ensure that it will not be displaced or loosened during the construction process. Through the high-strength connection of the first fine-rolled threaded steel bar 6, the thrust block thrust anchor beam 7 can effectively disperse the external force under the load and improve the stability of the overall device. The present invention further improves the fixing stability of the thrust block 1 by fixing the thrust block 1 with the thrust block thrust anchor beam 7 through the first fine-rolled threaded steel bar 6. The thrust block thrust anchor beam 7 can share the pressure applied from the outside, reduce the stress borne by the single thrust block 1, and prevent the thrust block 1 from being displaced or damaged due to excessive load. In addition, the first fine-rolled threaded steel bar 6 provides a precise connection, ensuring a tight connection between the thrust block 1 and the thrust block thrust anchor beam 7. The structure of the overall device is more solid and reliable, which effectively improves the safety and stability during the construction process. In addition to the above-mentioned embodiments, the thrust block thrust anchor beam 7 in the present invention can adjust its design according to actual construction needs. For example, the material of the thrust block thrust anchor beam 7 can be selected as high-strength steel or alloy steel according to the load-bearing requirements; the specifications and surface treatment of the first fine-rolled threaded steel bar 6 can also be selected according to the specific environment. Corrosion-resistant materials that are more suitable for corrosion resistance. In addition, in some special cases, the structure of the thrust block thrust anchor beam 7 can be optimized to adapt to different construction conditions and load requirements.

[0049] like Figure 7 As shown, a construction method of a thrust stop device for a cable-stayed bridge of a steel-concrete composite beam is also provided. The thrust stop device for a cable-stayed bridge of a steel-concrete composite beam is used. The method comprises:

[0050] S1. Install the thrust block 1 on the bridge body 9 and ensure its accurate position;

[0051] S2, connecting the thrust block 1 to the bridge body 9 through the thrust pin shaft 2, and fixing the thrust pin shaft 2 and the thrust block 1 by welding;

[0052] S3, embedding an embedded part 3 at the bottom of the bridge body 9, wherein the embedded part 3 is composed of a seamless steel pipe and a steel mesh, and is fixed to the bottom mold by electric welding to prevent it from moving during the pouring process;

[0053] S4, setting a thrust screw 4, and inserting and rotating the steel bar through its nut to adjust the load-bearing state of the screw 4 to ensure that it can provide appropriate supporting force;

[0054] S5, installing the thrust base 5, and anchoring the thrust base 5 to the bridge body 9 through the precision-rolled threaded steel mechanism 10, to ensure that the thrust base 5 can effectively withstand the required thrust force;

[0055] S6. Anchor the thrust block 1 and the thrust base 5 through the fine-rolled threaded steel structure 10.

[0056] This construction method ensures that each component and part can be fixed in an accurate position according to different construction steps, and has sufficient supporting force to withstand the applied load. In step S1, by accurately positioning the thrust block 1, ensure that its installation position on the bridge body 9 is consistent with the design requirements. Then, the thrust block 1 is connected to S2 through the thrust pin shaft 2 and fixed by welding to ensure the stability of the thrust block 1. In step S3, the embedded part 3 is composed of a seamless steel pipe and a steel mesh, and is fixed to the bottom mold by electric welding to avoid displacement during the pouring process. In step S4, the thrust screw 4 is connected to the steel bar through a nut and rotated and fixed to ensure that the bearing state of the screw is reasonable. In step S5, the thrust base 5 is anchored to the bridge body 9 through the fine-rolled threaded steel mechanism 10 to enhance the overall supporting force. In the last step S6, the fine-rolled threaded steel mechanism 10 ensures a firm connection between the thrust block 1 and the thrust base 5, thereby ensuring the stability and bearing capacity of the entire system. The construction method of the present invention ensures the precise installation and firm combination of each device component through detailed step design. First, by setting the thrust block 1 on the bridge body 9 and fixing it accurately, the stability of the thrust device is ensured. In each connection step, welding, threaded fixing and electric welding are used to ensure the strength and durability of each component. In addition, the anchoring of the precision-rolled threaded steel mechanism ensures the close combination of the thrust block 1 and the thrust base 5, thereby improving the overall bearing capacity of the device. This construction method not only improves the accuracy and efficiency of construction, but also ensures the safety and stability of the bridge during construction and reduces the risks during construction.

[0057] In addition to the above-mentioned implementation methods, the construction method of the present invention can also be optimized according to actual engineering requirements. For example, under different climate or environmental conditions, the material and welding process of the embedded parts 3 can be adjusted according to the actual conditions of the bridge body to improve corrosion resistance and durability. In addition, the adjustment method of the thrust screw 4 can also be flexibly adjusted according to the load requirements to ensure that its bearing capacity can meet the needs of specific projects. In certain cases, the fixing method of the thrust block 1 and the anchoring method of the thrust base 5 can also be fine-tuned according to the design requirements of the bridge to ensure that the best effect can be achieved during the construction process.

[0058] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A thrust stop device for a guy wire basket of a steel-concrete composite beam cable-stayed bridge, characterized in that: include: Bridge body (9); A thrust block (1) is arranged on the bridge body (9); A thrust pin shaft (2) passes through the thrust block (1) and is fixed to the thrust block (1); The embedded part (3) is arranged on the bridge body (9).

2. The thrust stop device for the guy cable basket of a steel-concrete composite beam cable-stayed bridge according to claim 1 is characterized in that: The thrust pin shaft (2) is fixed to the thrust block (1) by welding.

3. The thrust stop device for the guy cable basket of a steel-concrete composite beam cable-stayed bridge according to claim 1 is characterized in that: The embedded part (3) is embedded in the bottom of the bridge body (9), and the embedded part (3) comprises a seamless steel pipe and a steel mesh.

4. The thrust stop device for the guy cable hanging basket of a steel-concrete composite beam cable-stayed bridge according to claim 1 is characterized in that: It also includes a thrust screw (4), which includes a steel rod, a screw with threads, a nut and an end pressure-bearing steel plate, and a hole is provided on the nut.

5. The thrust stop device for the guy cable basket of a steel-concrete composite beam cable-stayed bridge according to claim 1 is characterized in that: It also comprises a thrust base (5), on which a fine-rolled threaded steel structure (10) is fixed, and the thrust base (5) is anchored on the bridge body (9) via the fine-rolled threaded structure (10).

6. The thrust stop device for the guy cable basket of a steel-concrete composite beam cable-stayed bridge according to claim 5 is characterized in that: The finish-rolled threaded steel mechanism (10) comprises a first finish-rolled threaded steel (6) and a second finish-rolled threaded steel (8).

7. The thrust stop device for the guy cable basket of a steel-concrete composite beam cable-stayed bridge according to claim 6 is characterized by: The thrust block (1) is anchored on the bridge body (9) via a first precision-rolled threaded steel bar (6).

8. The thrust stop device for the guy cable basket of a steel-concrete composite beam cable-stayed bridge according to claim 6 is characterized by: The thrust base (5) is anchored on the bridge body (9) via a second fine-rolled threaded steel bar (8).

9. The thrust stop device for the guy cable basket of a steel-concrete composite beam cable-stayed bridge according to claim 1 is characterized in that: The thrust block (1) is fixed with a thrust block thrust anchor beam (7) via a first precision-rolled threaded steel bar (6).

10. A construction method for a cable-stayed bridge guy-cable hanging basket thrust stop device for a steel-concrete composite beam, using the cable-stayed bridge guy-cable hanging basket thrust stop device for a steel-concrete composite beam cable-stayed bridge as claimed in any one of claims 1 to 9, characterized in that: The method comprises: S1. Install a thrust block (1) on the bridge body (9) and ensure that the thrust block (1) is positioned accurately; S2, connecting the thrust block (1) to the bridge body (9) via the thrust pin shaft (2), and fixing the thrust pin shaft (2) and the thrust block (1) by welding; S3, pre-embedded parts (3) are embedded at the bottom of the bridge body (9), wherein the embedded parts (3) are composed of seamless steel pipes and steel mesh sheets and are fixed to the bottom form by electric welding to prevent them from moving during the pouring process; S4, setting a thrust screw (4), and inserting and rotating a steel bar into the screw through its nut, thereby adjusting the load-bearing state of the screw (4) to ensure that it can provide appropriate supporting force; S5, installing the thrust base (5), and anchoring the thrust base (5) to the bridge body (9) through a precision-rolled threaded steel structure (10), to ensure that the thrust base (5) can effectively withstand the required thrust force; S6. Anchoring the thrust block (1) and the thrust base (5) through the precision-rolled threaded steel structure (10).

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